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Caron, Jackie – 1994
Fragile X syndrome is the most common cause of mental retardation next to Down syndrome. The syndrome is more prevalent in males because they only have one X chromosome, where the gene for fragile X is carried, while women have two X chromosomes and the normal gene can compensate for the affected chromosome. Certain physical features are…
Descriptors: Adults, Autism, Children, Cognitive Development
Seaver, Judith W. – 1972
This paper examines evidence supporting the hypothesis that environment differentially affects intelligence in a sex-specific manner. The current position that environment and heredity contribute interactively to intelligence obscures the greater vulnerability and exposure of males to environmental influences and the reciprocal lack of equivalent…
Descriptors: Children, Cognitive Development, Environmental Influences, Fathers
Anastasi, Anne – 1973
Much of our thinking about contemporary social problems reflects tacit presuppositions regarding the operation of heredity and environment in human behavior. These beliefs have important implications for practical decisions. Advances in genetics, psychology, anthropology, and other disciplines have contributed much to a clarification of the…
Descriptors: Behavior Development, Behavior Problems, Biological Influences, Cognitive Development
Ogbu, John U. – 1974
This paper deals with the issue of black-white differences in cognitive skills. Some authorities attribute these differences to differences in the environments of black and white homes. Others state that the differences are due to differences in genes, i.e., heredity. Scholars holding these two opposing views have become more or less entangled in…
Descriptors: Cognitive Development, Cognitive Processes, Educational Problems, Employment Opportunities